1. He gained a couple of pounds, but by then he was so slim that no one noticed.
    戒烟后他的体重增加了几磅，但当时他太瘦了，所以没人注意到这一点。

2. If they are growing near a house, their slim leaves brush the roof gently and cool the house with th
    如果竹子生长的房屋附近, 它们那修长的叶子轻拂着屋顶, 竹荫使房屋变得凉爽.

3. It has long leaves that sway in the wind like slim fingers reaching to touch something.
    它那修长的树叶在风中摇动, 好象伸出纤细的手指去触摸什么东西似的.